Are facts always true

How do you find speed if average speed is given? How do you do concrete slabs? What is the term used for a quantity which when substituted for the unknown quantity in an equation satisfies the equation? What fraction does 7.7 grams convert to? How do you write 62.5 as fraction? What are Russian unlucky numbers? Which substance represented by X in the word equation below? Change 3.7 liters into millerliters? What does a half bushel of Jonathan apples weigh? What is quadrilateral angle? What is 1.463884266 rounded to a decimal place? What does The Cuneiform writing and Babylonian numbers and Phoenician alphabet have in common? How do you turn a decimal number that repeats into a fraction? What do you call it when the place where position equals zero? What is the quotient of 0.2827 and 0.034? If a circle is 15ft around how many sq ft is it? How many tons in 3000kg? What is a half as a decimal fraction? How do you get the greatest common factor on a math problem? What percent of 42 is 36?

Are facts always true?